Photothermal therapy(PTT) has emerged as one of the promising cancer therapy approaches.As a representative photothermal agent(PTA),magnetite possesses many advantages such as biodegradability and biocompatibility.How...Photothermal therapy(PTT) has emerged as one of the promising cancer therapy approaches.As a representative photothermal agent(PTA),magnetite possesses many advantages such as biodegradability and biocompatibility.However,photothermal instability hampers its further application.Herein,we systematically synthesized three kinds of ferrite nanoparticles and detailedly investigated their photothermal effect.Compared with Fe304 and MnFe2 O4 nanoparticles,ZnFe2 O4 nanoparticles exhibited a superior photothermal effect.After preservation for 70 days,the photothermal effect of Fe304 and MnFe2 O4 nanoparticles observably declined while ZnFe2 O4 nanoparticles showed slight decrease.Furthermore,in vitro experiment,ZnFe2 O4 nanoparticles showed little toxicity to cells and achieved outstanding effect in killing cancer cells under NIR laser irradiation.Overall,through synthesizing and studying three kinds of ferrite MFe2 O4 nanoparticles,we obtained ferrites as PTAs and learned about their changing trend in photothermal effect,expecting it can inspire further exploration of photothermal agents.展开更多
The development of multifunctional theranostic nano-agents is an important resolution for personalized treatment of cancer.In this work,we synthesized a new kind of gadolinium boride nanoparticles(GBN)by a microwave-a...The development of multifunctional theranostic nano-agents is an important resolution for personalized treatment of cancer.In this work,we synthesized a new kind of gadolinium boride nanoparticles(GBN)by a microwave-assisted chemical etching method,and discovered their optical characteristics including fluorescence imaging and near-infrared(NIR)photothermal conversion capability.Bright greenishyellow fluorescence enabled for intracellular localization,while effective NIR-photothermal conversion supported photothermal therapy(PTT).In vitro and in vivo results indicated that GBN exhibited a superior antitumor performance and high biocompatibility.This study demonstrated a promising multifunctional theranostic nanoplatform for cancer treatment.展开更多
基金supported by the National Key R&D Program of China(No.2016YFC1100300)National Natural Science Foundation of China(Nos.51873041 and 51473037)
文摘Photothermal therapy(PTT) has emerged as one of the promising cancer therapy approaches.As a representative photothermal agent(PTA),magnetite possesses many advantages such as biodegradability and biocompatibility.However,photothermal instability hampers its further application.Herein,we systematically synthesized three kinds of ferrite nanoparticles and detailedly investigated their photothermal effect.Compared with Fe304 and MnFe2 O4 nanoparticles,ZnFe2 O4 nanoparticles exhibited a superior photothermal effect.After preservation for 70 days,the photothermal effect of Fe304 and MnFe2 O4 nanoparticles observably declined while ZnFe2 O4 nanoparticles showed slight decrease.Furthermore,in vitro experiment,ZnFe2 O4 nanoparticles showed little toxicity to cells and achieved outstanding effect in killing cancer cells under NIR laser irradiation.Overall,through synthesizing and studying three kinds of ferrite MFe2 O4 nanoparticles,we obtained ferrites as PTAs and learned about their changing trend in photothermal effect,expecting it can inspire further exploration of photothermal agents.
基金supported by the National Natural Science Foundation of China(No.51872188)Shenzhen Basic Research Program(Nos.JCYJ20170302151858466,JCYJ20170818093808351)+2 种基金Special Funds for the Development of Strategic Emerging Industries in Shenzhen(No.20180309154519685)SZU Top Ranking Project(No.860-00000210)Hubei Key Laboratory of Plasma Chemistry and Advanced Materials for the Open Fund(No.2020KF02).
文摘The development of multifunctional theranostic nano-agents is an important resolution for personalized treatment of cancer.In this work,we synthesized a new kind of gadolinium boride nanoparticles(GBN)by a microwave-assisted chemical etching method,and discovered their optical characteristics including fluorescence imaging and near-infrared(NIR)photothermal conversion capability.Bright greenishyellow fluorescence enabled for intracellular localization,while effective NIR-photothermal conversion supported photothermal therapy(PTT).In vitro and in vivo results indicated that GBN exhibited a superior antitumor performance and high biocompatibility.This study demonstrated a promising multifunctional theranostic nanoplatform for cancer treatment.
